Doosan GC20SC-5 — DOOSAN GC20SC-5 Lift Truck Operation & Maintenance Manual PDF (EN)

Operation Section Table 2. Diagnostic Fault Codes (Flash Codes) cont’d. (*) Fault actions shown are default values specified by the OEM.

75 DFC PROBABLE FAULT FAULT ACTION * CORRECTIVE ACTION FIRST CHECK 612 (65) APP2RangeLow APP2 sensor voltage out of range low, normally set if the APP2 signal has shorted to ground, circuit has opened or sensor has failed TurnOnMil Check foot pedal connector • Check APP2 signal at SECM PIN B16 621 (62) APP1RangeHigh APP1 sensor voltage out of range high, normally set if the APP1 signal has shorted to power or the ground for the sensor has opened (1) TurnOnMil (2) CheckEngine Light Check foot pedal connector • Check APP1 signal at SECM PIN B7 622 (66) APP2RangeHigh APP2 sensor voltage out of range high, normally set if the APP2 signal has shorted to power or the ground for the sensor has opened TurnOnMil Check foot pedal connector • Check APP2 signal at SECM PIN B16 631 (63) APP1AdaptLoMin Learned idle end of APP1 sensor range lower than expected None Check APP connector and pins for corrosion • Cycle the pedal several times and check APP1 signal at SECM Pin B7 632 (67) APP2AdaptLoMin Learned idle end of APP2 sensor range lower than expected None Check APP connector and pins for corrosion • Cycle the pedal several times and check APP2 signal at SECM Pin B16 641 (64) APP1AdaptHiMax Learned full pedal end of APP1 sensor range higher than expected None N/A 642 (68) APP2AdaptHiMax Learned full pedal end of APP2 sensor range higher than expected None N/A 651 APP1AdaptHiMin Learned full pedal end of APP1 sensor range lower than expected None N/A 652 APP2AdaptHiMin Learned full pedal end of APP2 sensor range lower than expected None N/A 661 APP1AdaptLoMax Learned idle end of APP1 sensor range higher than expected None N/A 662 APP2AdaptLoMax Learned idle end of APP2 sensor range higher than expected None N/A 691 (69) APP Sensors Conflict _ _ APP position sensors do no not track well, intermittent connections to APP or defective pedal assembly (1) TurnOnMil (2) Level1PowerLimit Check APP connector and pins for corrosion • Cycle the pedal several times and check APP1 signal at SECM Pin B7 • Cycle the pedal several times and check APP2 signal at SECM Pin B16